
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
    .box{
        width: 230px;
        height: 160px;
        background: linear-gradient(45deg,
        #fb3 25%, #58a 0, #58a 50%,#fb3 0, #fb3 75%, #58a 0);
        background-size: 30px 30px;
    }
    </style>
</head>
<body>
    <div class="box">

    </div>
</body>
</html>